Tuning Your Sundown SIA/SFB Amplifier Crossover

[@CL-yp1bs]

Great info. My recommendation also… use an external digital crossover on a headunit or dsp as a processor. Set the high pass all the way counter clock wise (all the way down) and set the low pass filter all the way clockwise (all the way up) that will essentially “bypass” the crossovers as much as possible and let an external device do the work. If that one little potentiometer goes from 10hz to 1khz that will be VERY sensitive to even the smallest movement so I would almost say an external processor is essential in this situation

[@oscarishandsome5150]

That's wrong. You don't need another equipment to do exactly what your amplifier can already do

[@CL-yp1bs]

@@oscarishandsome5150 I did not say you needed it, I said i recommended it. The potentiometer goes from 10hz to 1khz, that is next to impossible to set accurately. Good luck, I bet your system sounds like $hit buddy!

[@oscarishandsome5150]

@@CL-yp1bs frequencies are not distributed in parametric around that knob. Tuning it is as simple as any thing else on that amp.

[@CL-yp1bs]

@@oscarishandsome5150 What? You obviously have no idea what you are talking about. Let's say your ported enclosure is tuned to 35hz, now how in the world are you going to set your subsonic filter at 30hz when a *little tiny* turn of the knob takes your high pass/subsonic from 10hz to 100hz? The answer is you will not. Its literally impossible without using specialized test equipment. And on top of that you have still yet to explain yourself for misquoting me in the first place.. i said "my recommendation" not "this is required"

[@BEAZY_5150]

Right, where is 40 Hz on the HP

[@homebody0089]

Been a hot minute since we saw you, glad to see you're still on the platform and I hope all is well. Thanks and take it easy!✌

[@Tekjive]

Crazy how even pros can still learn something new a different way on the basics. Good shit and props for the honest approach 🦾

[@cigarjoe6950]

Thank you for the detailed description

[@MrDopey32]

Agreed

[@jayjontelle36]

Man I'm sooo glad I seen your channel...mines was fosho headed back where it came from ...lol good info ..great explanation

[@chunk386]

Been wondering where the hell you been. It's been a while

[@Opel_Corsa_Subwoofer]

What fuse is recommended

[@FrankStPeter]

Missed you amigo,,,( hope everything's been good) you must do a lot of sales in Poland,,, I hope the next video isn't showing us how to put the positive and the negative in the amp make it work🤣🤣🤣 have a good rest of the day

[@devpenht07nonoplease92]

how the hell am i supposed to tune the crossovers on my amp when one slight turn throws it off by a few hundred hz??????

[@biccog8634]

Lmao this is the exact problem I’m having now with this amp

[@bygboie]

Welcome back stranger. Missed ya

[@cartycartyamplifiersalesrepair]

Amazing video we need more videos like these we'll done sir 👍👍🙏🙏

[@jonanderson4474]

Love my sfb1000d and x8v3 in my Gately box.

[@SUTH_33]

just little confuse about crossover section. half bridge monoblock using dB per octave roll off. example : '-12db/octave'. but for alot full bridge monoblock use '8a' typical. example : '-12db/8a'. what is a 8a??

[@bradlynn897]

just ordered my first Sundown Audio set up - Dual SA Classic Series 12 inch Ported Subwoofer Bass Package 2000W

[@meverickjnphilip9885]

If I use a external processor where do set my knob on the actual amp

[@thekidbart4528]

Idk about everyone else…..but this is why you need the SMD DD1 and CC1……find the Max unclipped volume on HU then turn your LPF all the way up then set the HPF all the way down and then set the bass boost where you want it at and then set the gain your gain (DD1) with the CC1 once you set your gain use 80hz to set LPF and then do the subsonic filter (ex- 25hz) and your done

[@kevinmcclary4234]

May be a shot in the dark but i have 2 D4 sml10’s wired to a sia1250d. How should i have my amp tuned for that?

[@E21091]

What should I set my subwoofer level on headunit to?

[@vexproaudio]

Great informational video.

[@Get_Low_Romero]

Question it has one rca input but in the video you have both plugged in why is that

[@UnofficialAudio]

It's a pass thru design. The output rca can be used as input as well.

[@Get_Low_Romero]

@@UnofficialAudio good to know I didn't know if made a difference in sound

[@trunkbangking]

Welcome back.. And its about damn time!! Lol

[@tonyswagz]

How do i turn off the crossover on my amp to use an external crossover

[@darthraider4083]

So pretty much set your LP 60-70 and you HP to 20-30? no bass boost and set the gain before clipping? SFB 1500d AMP 12" Sub American Bass 1200 rms 2400 max

[@stevenwiltse9611]

Bro we miss you! Do more please

[@kendrellholley1975]

I wonder how many amplifiers have been returned that shouldn’t have been? I never had a problem with my SFB amps.

[@HaynesJP]

Same here. I’ve had two and both worked perfectly fine, they are power hungry little bitches!!!

[@davidlewis8124]

I agree 👍 DSPs will clean the signal from your head unit to your amp.

[@jasonboudreau8848]

Whats with the input and output RCA?

[@tylerjohnson1553]

Any chance U could test the salt 1700.5 to see what the true power out put is on that amp it f***ing rails with my 2 sav2 12 and my hurtz Mille pro I had to upgrade my alternator to a exclusive amperage 390 amp alternator and a Dura last platinum AGM battery just to Supply enough power to run that amp with out flashing my led headlights

[@kaamiljahmezjaanfoster5795]

I have the 1750 D on two kicker 10 L7 how do I tune my amp properly ? I have a 2016 bmw 528i factory head unit.

[@bassjasinski]

Glad you are back

[@rickycanupsmashedbutwhole808]

Watched this whole video. I still have no idea what it should he set at using just a multimeter. 😊

[@allaboutbass8146]

Hey i just installed a sia 3500 I have a 250 amp alternator and a xs power xp3000 battery i noticed that my bass will cut out and then get back loud.. what’s going on? Do I need to add a second battery?

[@MrLips635]

So what you are saying is the lower the level it will keep the frequency lower in the hz area?

[@williamswaney9240]

Wooohoooo, unofficial is back!!!

[@drjd2real]

My sfb5000 sounds weak with bass boost off, and I'm running a Kenwood 1057xr. I'm running 4 American bass 8hd's wired to one ohm, and I thought this amp would be too strong. I have an indash epicenter with the restoration off. I'm gonna try running the rca's straight to the head unit and take the epicenter out of the equation.

[@AlejandroMartinez-rf2gn]

I’m having the same issue, did you solve the problem?

[@drjd2real]

​@AlejandroMartinez-rf2gn I uninstalled the epic. My sub out was weak on my Kenwood and not putting out 5v. I added a line driver and that helped. I still added a little bass boost, but not that much. The amp is more than the subs can handle. I think it needs about 400ah of agm to run properly

[@jimrodcart]

I’m new at this, I have 4 ohm kicker sub in a sub box. How do I make my amp 4 ohms? I have 1300 Hifonics amp capable of 4 ohms load..Is it plug in ready and the amp will play automatically work at 4 ohm ?

[@tcorley7477]

Been a while.. So are the sfb amps good for running daily for good bass compared to say my dc 5k? Do they need a lot of extra batteries? Looking for a more budget type build thought about sfb 5000.

[@ditto_75]

I have the SFB 3k and I would say compared to other amplifiers I have owned in this price range the SFB has average efficiency. The fan bearings are almost shot though. That little fan didn't make it 3 months before it started making noise.

[@MoparStephen]

Sweet - a new video! Was hoping you hadn't gone AWOL on us.

[@aliciaANDanthonySandoval]

Thought you got kidnapped lol. 😆 🤣 😂

[@jman4573]

So if I use my head units crossovers do I leave the ones in amo to the left? Except high OES which is subsonic?

[@oscarishandsome5150]

You can use crossovers on any equipment but if you use on multiple equipments at same time, it'll increase the rate of octave db's it's working at (like 12 + 12 = 24db)

[@jman4573]

@@oscarishandsome5150 what fb does an amp slope at?

[@nathanconers2290]

Love your videos man thank you

[@thomashood8549]

Just bought the sundown sia 3500 to power my 10" sundown zv6. Where should I have the amp set?

[@user-st1kg4wv9w]

My friend at 80 hertz for my sub the setting in multimeter must be lower or higher than this you made?less or higher and in what voltage in my output I must have for 80 hertz in multimeter?

[@rexnhogz]

Hard to believe people don't get this concept 🤯

[@Hoopers_s]

The only thing I don't like about the sia line is the low input voltage protection. On a stock headunit. That can cause a problem.

[@Steve_Reject]

Not sure that means… I have the SIA3500 on my stock head unit for a year now and no problems..

[@user-st1kg4wv9w]

And the sub sonic where I must put it in my amp which db number? Ok thank you my friend

[@mrswagjumper8806]

Speaking of the devil. Welcome back

[@samdudevery7695]

My sia 3500 would turn itself on and off for about 5 min whenever I turned it on and then it would stay in protect, any idea of what’s wrong with it?

[@Longpipejang]

Check your ground. My sia needed a better ground after upgrading from a previous amp

[@tylerjohnson1553]

I have a salt 1700.5 and 2 sundown audio SAv2 12s in a down for Sound prefab box With an exclusive amperage 390 amp alternator zero gauge wire AGM battery and hurtz Millie pros component up front and coaxial in the rear in my 2018 Kia Forte using the Kia factory head unit with a 4 channel line out converter and I want to know how to set my gain subsonic low pass bass boost because I just can’t get my subs to sound just right

[@850CANE]

I'm having the same issue. Went from 2 Skar subs with a TS Power cheap amp. Put in two Sundown SA 12s and a SAE 2000.d amp and I was expecting a lot and my old stuff sounds better. I can't tune this amp to sound worth a crap. Idk?! Frustrating

[@TokenTombstone]

Get a real radio for starters.

[@nalee1]

What would be the difference between an SIA 3500D and a SALT4K? Thanks

[@Steve_Reject]

Much higher quality components on the entire amp. The output side is massively over built for stability. Gets rated power at 12v. Might be able to go lower than 1 ohm if your electrical is strong. Lots of differences. I love my SIA 3500 though.

[@kswis]

Good to see you putting out content again. In my opinion & experience the sfb is no good. Even for the price. I exchanged one noisy one for one that popped in a hair under a month wired at 4 ohms. Can't say anything bout the sai, haven't owned one but I definitely don't recommend any of the sfb line. And that's a shame cause I was a big fan of sundown. I digress keep putting out content bro. Good to see you

[@oscarishandsome5150]

I bet it would either be a one defected unit or the way you used it

[@Steve_Reject]

SIA is much better quality and sound. I’ve had both.

[@cptklutch26]

Anyone else's OCD bothering you about the Speaker being upside down in the Enclosure?

[@matt6951]

When’s the 5k coming out?

[@jesuszuniga1257]

Hi i have a sae1500. How does the sfb amp compare to the sae. Want to upgrade to a sae2000 but can't find one. Would you recommend a sfb2000

[@850CANE]

I have a brand new sae 2000 I want to sell

[@scottydaniels8299]

What's is the difference between the sia and the sbf amplifier

[@2v_media]

SIA are Smart amps. SFB are full range.

[@bassdrop4420]

When using the bass knob does it override the amplifiers gain?? Or is the knobs adjustment the level control?

[@cuh_2023]

Your bass nob is basically your volume nob for your sub

[@bassdrop4420]

No

[@cuh_2023]

@@bassdrop4420 that's all it is it doesn't fuck with your gain or crossovers

[@bassdrop4420]

A gain knob is not volume

[@cuh_2023]

@@bassdrop4420 I fucking know that I was talking about the bass nob can you FUCKING read

[@timnowlin1]

Yo I got sundown 2500. Bought. Yard sale or open box. I went. To hook it up. Only. Play. On lpf like. For highs. Only. No. Bass. At all ever now and then. I might get it play. Some bass idk what's wrong with it

[@itsfredoo3830]

Can you make a gain video on sia/sfb you didn’t really get into lol

[@grady.stu.8300]

My head unit was lacking on output. I bought the Skar 7 band equalizer, $46, and use it as a line driver. Barely touched the gain on the amp. No bass boost. Also I thought you set the subsonic based on what your box is tuned to.

[@justinishaq7555]

Welcome back!!!

[@northern_decal_co.2607]

I want one of those Sundown audio posters.....

[@HustlegangHGgaming]

Step 1. Bass boost, all the way to the fuckin right ✈️

[@markfedler6504]

He made it too confusing by all the unnecessary information you kept talking about other amps and other things instead of actually talking about setting the crossover how do you make it open for your head unit to be able to use it however

[@Mcfly0856]

I have a SIA 1250D on the way, what is the recommended fuse rating?

[@James-wo1np]

10% of RMS rating. So 125amp technically. I would use a 150 amp breaker

[@Mcfly0856]

@@James-wo1np TY!

[@scottchalfant7336]

Can you run this amp at .5 ohm

[@user-nw9wn7tq6n]

yea the budget amp runs at .5 ohm. so what do you think the BEST line of product can be ran @?

[@Bassotronics]

👍🏻🔉👍🏻

[@darksmoker240sx]

I have sundown sfb amps , what’s the perfect voltage for the gains for max clean power without clipping? My sub amp is a 5000watt sfb an I have the subsonic tuned for 30hz an the other low crossover turned all the way down to 80hz with the gain at halfway. With the bass boost turned all the way down. An the bass knob goes to half way an with the radio half volume my bass knob starts clipping. The sun is a sundown nightshade v5 18in . Just trying to get the most out of my amp without clipping . I also have a sfb 4ch an smaller 2ch I would also like the perfect voltage on gain for those to . Just trying to get the most clean power out of what I got thanks Steve🔊💨💨💨💨

[@christopherlee1673]

Ok well what I think is when I called in thinking my amp was broken... why didn't anybody there tell me either about this video, or say something about the crossover before I sent it in and then you guys charged me over 60 bucks to send mine back and it took days to get it. If it's a common problem!! Where's the customer service? And my amp never came with a owners Manuel like everybody else gets??? And then I ask for one and you guys can't even send me one...I had a shifty time dealing with sundown very disappointed. Especially considering how often customers are having this problem! SUCKS MAN

[@bkh5746]

Ya need to mention that they need a extra lithium battery.my buddy i sold him a taramps he called me said its junk.he said my rockford 1200 sounds louder.i told him he wasnt supplying enough current to make any power.😂

[@edycalderon1282]

Long time👍👍

[@Jesusnumber1]

Yo Derek we more spl testing videos my brother🚙🔊🎶

[@SuprithcySupri]

❤👍👍👍

[@bobbybyrkett7751]

Hello stranger

[@chrisfiske]

Hope your sticking around lol

[@menard79]

Because every single guy that dynos amps tell us not to crank the gain all the way.

[@pedrosolis6834]

🔊🔊🔊🔊🔊🔊👍👌👌👌👌

[@Damien-Lugnut]

4:10 lol

[@gavinmcclure8047]

Those amps are ok but the design is just eh. They require more tuning and are more sensitive . Better off just going half bridge amplifiers. Full bridge has to many issues in general.

[@bjenks2]

I was thinking the same and looking for another person in agreement.

[@chunk386]

Yo yo.

[@eurekaakerue4649]

❌ When All these Companies Copy A Brazilian Amp Board You get A. Brazilian Amp No Mater the Name, it’s Still A Full Range Amp 👈😎 just learn how to use them✅

[@DirtyKk]

Wtf was that intro